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Found five folding intent 3d models.

free
grabcad
Clothes Folding Machine
free
grabcad
MiSTREE NBD fognet Design
free
thingiverse
Mesostructured Cellular Materials:  Early Prototypes
free
grabcad
Portable Desk: Rabaconda Race Case
free
grabcad
The $300 Ergonomic Design - Ready for Mass Production